Abstract
The method of optical polarimetry was used to study the hydrophilicity of polyurethane. It was shown that upon swelling of elastomers, the initial optical anisotropy increases, but the photoelasticity coefficient decreases. The change in optical anisotropy under deformation of polyurethane under conditions of prolonged action of constant force is investigated. The NMR relaxometry method with the inversion of integral conversion was used to study the effect of polyurethane swelling on the dynamics of elastomer macromolecules.
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